1420047747 has 16 divisors (see below), whose sum is σ = 2129124480. Its totient is φ = 935291016.

The previous prime is 1420047743. The next prime is 1420047767. The reversal of 1420047747 is 7477400241.

1420047747 is a `hidden beast` number, since 142 + 0 + 0 + 477 + 47 = 666.

It is not a de Polignac number, because 1420047747 - 2² = 1420047743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420047743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314593 + ... + 319074.

It is an arithmetic number, because the mean of its divisors is an integer number (133070280).

Almost surely, 2^1420047747 is an apocalyptic number.

1420047747 is a deficient number, since it is larger than the sum of its proper divisors (709076733).

1420047747 is an equidigital number, since it uses as much as digits as its factorization.

1420047747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633759 (or 633753 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 1420047747 is about 37683.5208944175. The cubic root of 1420047747 is about 1124.0034624054.

Adding to 1420047747 its reverse (7477400241), we get a palindrome (8897447988).

The spelling of 1420047747 in words is "one billion, four hundred twenty million, forty-seven thousand, seven hundred forty-seven".